#VU123245 Spoofing attack in Firefox for iOS - CVE-2026-2634
Published: February 25, 2026
Vulnerability identifier: #VU123245
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-2634
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Firefox for iOS
Firefox for iOS
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to desynchronization between the address bar and web content before a response is received in Firefox iOS. A remote attacker can spoof page content for an arbitrary domain name.
Remediation
Install updates from vendor's website.